The effects of applications of sodium chloride (NaCl) and potassium chloride (KG) ranging from 0 to 720 kg Cl/ha on the yield and uptakes of chloride (Cl) potassium (K) and sodium (Na) by fodder beet were studied in field experiments at two sites in New Zealand. At 360 kg Cl/ha applied, both NaCl (590 kg/ha) and KC1 (758 kg/ha) increased significantly yields of fresh roots, dry roots and fresh sugar content of fodder beet over the minus-Cl plants. Compared with the sulphate anion, chloride application stimulated K uptake in tops and roots. Results indicated that in the beet crop, uptake of K is enhanced with the presence or addition of Cl (as NaCl) compared with SO 4

Fodderbeet(BetavulgarisL.)wasgrown on two New Zealand soils (Inceptisols) to which five rates of sodium chloride (NaCl) were added (0, 295, 590,885, and 1180 kg/ha). Yields offresh roots and fresh sugar trends increased linearly with increasing rates of NaCI in the Templeton soil but the highest yield occurredat295 kg NaCl/ha in the Wakanui soil and decreased at higher rates. In both soils, the sugar concentration was unaffected. The difference between soils was attributed to differences in soil chloride (CI) status and CI inputs from irrigation water (Templeton: 5 kg CI/ha; Wakanui: 33 kg ClI ha). CI inputs from rainfall during the cropping period were similar at the two sites (Templeton: 37 kg Cl/ha; Wakanui 41 kg Cl/ha). Overall, yield responses observed from NaCI applications were mainly a result of Cl. In both soils, NaCI applications increased CI concentrations linearly, but did not affect sodium or potassium concentrations in tops or roots.

No abstract

The response to sequential coconut toddy and nut production (SCTNP) scheme of four coconut varieties/hybrids at PCA-Zamboanga Research Center, San Ramon, Zamboanga City showed that the dwarf x tall hybrids, Malayan red dwarf x Baybay tall (MRD x BAYT), Malayan red dwarf x Tagnanan tall (MRD x TAGT) and Catigan green dwarf x Laguna tall (CATD x LAGT) produced significantly higher toddy (495 – 699 li/tree/yr) and nut yield (143-169 nuts/tree/yr)  compared  to tall cultivar, ‘Laguna’ LAGT (364 li and 123 nuts per tree per year).  Varietal difference in terms of the floral and vegetative characteristics of the coconut  cultivar and hybrids contributed significantly to the differences in the sap/toddy and nut yields.